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Finding the Fourth Proportional to 223.84, 308.96 and 130.60

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Solution

The fourth proportional to 223.84, 308.96 and 130.60 is: 180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.84 : 308.96 = 130.60 : x
  2. Step 2: Convert to fraction form
    223.84/308.96 = 130.60/x
  3. Step 3: Cross multiply
    223.84x = 308.96 × 130.60
  4. Step 4: Simplify right side
    223.84x = 40,350.18
  5. Step 5: Solve for x
    x = 40,350.18/223.84
  6. Step 6: Final answer
    x = 180.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.